mirror of
https://github.com/Kpa-clawbot/meshcore-analyzer.git
synced 2026-11-11 22:57:55 +00:00
efitenandClaude Opus 5.5
a08f2f4e7c
Fixes #2260 (part 1 of 2: liveness; the adaptive offline threshold follows in a separate PR). ## Problem A repeater silent since 2026-10-18 showed **Active — Last relayed 4m ago** and **Last Heard 36m**, and its offline mail never fired. Every hit after that date was the 1-byte hop `67`, shared by nine nodes: - the live resolver's affinity tiebreak (`resolvePathForObs`) put those transmissions in `byNode`, which fed `stats.lastHeard` and `LastHeardMap`; - `last_relayed` folds in the 1-byte prefix bucket on purpose (#662), and drove the status in `roles.js` and the notify offline check. ## Fix The store keeps `certainHeard` per node: the newest transmission that can only be that node. | Evidence | Counts? | |---|---| | Own packet (`pubKey`, `srcPubKey`) | ✅ | | Flood relay hop whose prefix, at the packet's path hash size, matches exactly one path-capable node | ✅ | | 1-byte hop shared with other repeaters | ❌ | | Direct-route path (hops still to come, `Mesh::removeSelfFromPath`) | ❌ | | TRACE (path bytes are SNR) | ❌ | | Destination (`destPubKey`) | ❌ | A multibyte repeater legitimately appears as a 1-byte hop (the originator picks the hash size, `Mesh::routeRecvPacket` appends at that size), so only uniqueness decides. The rule is applied in every load path through `indexResolvedPathHops` and the new `indexColdLoadRelayHops`: Load, loadChunk, scanAndMergeChunk, live ingest, late observations. Liveness reads only that: - `/api/nodes` and the node detail: `last_heard` is the newer of `last_seen` and the certain last heard. Before, it was a plain copy of `last_seen`. - health / bulk-health `stats.lastHeard`. - `LastHeardMap` → notify offline check. The separate relay input (`lastRelayed`, `relayTimes`, `notifyInput.Relayed`) is removed. - `roles.js getEffectiveHeardMs`: newest known timestamp, without `last_relayed`. The side pane no longer says "Last relayed"; the Last Relayed row stays (analytics) with an updated tooltip. - New status **`uncertain`** (repeaters and rooms): nothing certain within the silent window, but the shared prefix (`last_relayed`) still in paths. Grey badge with explanation, an *Uncertain* filter on the nodes list and the map, dimmed like stale. The offline mail for such a node says only its shared prefix was still seen. - A prefix also held by a path-capable node in `inactive_nodes` is not unique; adverts with `signatureValid: false` are no evidence; `/api/nodes/search` reports the same `last_heard`. Attribution for analytics (`byNode`, packet counts, `last_relayed`, relay counters, usefulness) is unchanged. ## Performance Hot path: `noteCertainRelays` runs per observation on ingest under the write lock: two hex bytes of header parsing plus one prefix-map lookup per resolved hop. ``` BenchmarkNoteCertainRelays-16 10307640 116.2 ns/op 0 B/op 0 allocs/op (8-hop 2-byte path, 2,000 repeaters) BenchmarkLastHeardMap-16 1902 0.77 ms/op (5,000 nodes; was 3.7 ms scanning byNode) ``` Memory: one string per node ever certainly heard, dropped together with the node's `byNode` list on eviction. ## Tests - `certain_heard_loadpaths_test.go`: every load path (Load, loadChunk, LoadChunked — each with and without resolved_path — live ingest, late observations) feeds `certainHeard`; each of the 8 call sites verified red with a nil prefix map. - `certain_heard_test.go`: hop width per route/payload type; retired namesake prefix; failed signature; uncertain offline mail; shared vs unique 1-byte vs 2-byte hops; direct/TRACE/nil prefix map; cold-load path; sender vs destination; eviction; `lastHeardValue`; `/api/nodes`, detail and health agree. - Regression for #2260: last certain packet on day X, 20 shared-prefix hops after it → `LastHeardMap` stays at X and `node.offline` goes bad after 72 h. Verified red with the uniqueness check mutated out. - Notify: `TestEvaluateCertainHeard` replaces the relay-input test. - Frontend: `last_relayed` alone no longer keeps a repeater or room active; newest timestamp wins (an old `_liveSeen` can't hide a fresh certain relay). - `cmd/server` `go test ./...` and `test-all.sh` pass locally, also on a trial merge into a downstream fork with 457 extra commits. ## Validation Ran the server on the freshened e2e fixture: list, detail and health report the same last heard; e.g. a repeater whose `last_relayed` is 3 min newer than anything certain keeps its certain time. **No browser screenshot**: Playwright isn't installed on this machine; CI's E2E covers the pages. ## Not changed - The ingestor's relay touch of `nodes.last_seen` (#1854) resolves a shared hop only when exactly one candidate is adjacent in the neighbor graph; it did not fire in this case. Left as is. - The `lastHeard=` list filter still filters `last_seen` in SQL. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>